They pledged to facilitate access to their markets for their members and push for the further liberalisation of trade and application of bilateral free trade agreements.
They also said they would exchange their experiences in the process of negotiations on EU membership and represent the interests of their members to facilitate their adjustment to EU standards and rules.
The chambers of commerce will jointly propose projects within regional initiatives and EU programmes intended for Southeast European countries.
The President of the Croatian Chamber of the Economy, Nadan Vidosevic, highlighted the need to strengthen regional cooperation, saying that a major challenge facing the region was how it would position itself in the EU once all the countries of the former Yugoslavia entered the bloc.
Vidosevic said he believed Croatia had a good position in the region which it should preserve and promote.
The Vice-President of the Serbian Chamber of Commerce, Radmila Milivojevic, said that the main issue her country had to deal with was competitiveness.
Serbia and Montenegro is facing the challenge of making a product it will be able to put on the market and in this regard all investment projects should be welcomed, regardless of where they come from, because investment brings news technologies and competitiveness, she said.